Troubleshooting Comm Error Check Wiring Code On Lippert Ground Control 3.0

Question

Question:

None of the slides will come out and the LCI Electronic leveling shows comm error check wiring, New batteries, checked all the wiring looks good.

asked by: Steve

0

Expert Reply:

When your Lippert Ground Control 3.0 # LC358590 has a reading that says "Comm Error" it is referring to the communication between the controller and touch pad. You will need to check your harness to ensure it is connected properly and there is no damage or corrosion. If it all looks good then you'd need a new control module part # LC304136.

expert reply by: Jameson C

0

Prill S.

5/5/2020

Actually we figured it out. We were sold 2 12 volt batteries instead of 6 volt so there was 24 volts going to the keypad. We rewired the batteries so that the voltage was 12volts and we are now good to go

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Chris R.

5/7/2020

Excellent! I'm really glad you were able to sort that out. Thanks for letting me know.

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Merle M.

7/12/2021

I just had the same error message and was all set to cancel the trip and order a new controller. But then it dawned on me that the controller has no off switch, so it always has power when the power cables are connected to it. It's a computer, basically, so I thought, what do you do when your computer gives errors sometime? Reboot! So, I pulled one of the power cables off of the controller, waited a minute, then put them back on. The error reset (went away forever) and I was able to do everything needed. I had already checked all 4 of the wires going from the panel to the controller and knew they all had continuity. If you get the comm error and know you have 12 volts to the controller and have tested the comm cable, try pulling a power wire. Might work for you too, save your trip and over $[XX] for an un-needed controller. It sure made my day when my idea worked.

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Jon G.

7/13/2021

@MerleM Thank you for the input! That is definitely helpful information.

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Prill S.

5/3/2020

I have this message only when trying to use battery power we just replaced the batteries in the RV With the RV plugged in I keep getting an error code for the rr jack, to retract all. Are these related? What do I do. The batteries are completely charged and everything that should work in the RV on battery power is working.

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Chris R.

5/5/2020

I would make sure you're still getting 12V to the controller after replacing the batteries. It's possible that something just isn't fully connected. Let me know what you find and we can go from there.

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Aven O.

7/26/2021

@ChrisR that is because the system has lost communication with the hall effect sensors on the jacks. Extend them more than six inches and hold retract for them to go back up automatically so that the sensors can talk to the controller. This error code should reset. The code might keep popping up as the jacks retract so just keep hitting retract until they go up. If code comes up again you with have to check wiring to make sure the controller is communicating with the jack. Or jack is damaged and not moving freely.

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Answer 1

We spoken with Lippert in the past about this and they told us that the Comm Error you are experiencing means the controller and touch pad can&#39;t communicate. This is normally due to a wiring connection but if your harness is new and the…

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Answer 2

The &#39;Comm Errror&#39; message means that communication between the touch pad and the controller has been lost. You&#39;ll want to check either end of the connection, making sure the connections are secure and not…

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Answer 3

We have heard of this issue before on the Lippert Ground Control systems #LC358590. Here is the recommended procedure for clearing the error code: Extend all jacks at least 6 inches. Then press and hold the RETRACT button until the jacks begin…

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Answer 4

Often an issue like you stated has to do with the battery not being fully charged. If the battery is even slightly low, sometimes this system is a little finicky. I recommend first charging your battery fully and testing it to ensure it is fully…

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Answer 5

I reached out to my contact at Lippert and he said there are a couple of things you will want to look at to try and troubleshoot the blank display on your Level Up touch pad. He said to first remove the pad itself from where it&#39;s…

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Answer 6

The Comm Error code is saying that the communication between controller and touch pad has been lost. I have included a diagram of the Lippert Ground Control 3.0 Electric 5th Wheel RV Leveling System #LC675817. This will help you check the…

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Answer 7

I reached out to my contact at Lippert and they said that it sounds like you just aren&#39;t holding the 4 buttons for the reset long enough. It requires 5 seconds, but many people will count to 5 a little too fast and the system…

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Answer 8

I have added a cut out from the manual of the Lippert Ground Control 3.0 #LC675817 which details how to manually override the jacks. Additionally you can still extend or retract the jacks if you have an error code by pressing and holding…

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Answer 9

What exactly does the error message say? Does it seem to work at all in spite of the error message?

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Answer 10

Thank you for the feedback! It sounds like you might need to re-calibrate the zero point on your leveling system. If you&#39;ve got a Lippert Ground Control 3.0 #LC304136 system, I&#39;ve gone ahead and listed the steps…

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Answer 11

In order to test the controller on the Lippert Ground Control 3.0 Electric Leveling System you&#39;ll first need to obtain a multimeter. Once you have this then you will need to use the ground probe and place that on the green wire coming…

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Answer 12

If you have the Lippert Ground Control Leveling system on your trailer the correct replacement module/display is the part #LC421484. Feel free to email me back with the pictures you have and I&#39;ll take a look though.

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Troubleshooting Comm Error Check Wiring Code On Lippert Ground Control 3.0

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